I've had no gyno from it at all. I guess genetically I'm not susceptible to it. They were a little bit more sensitive but know enlargement or anything but that did go away. There were some side effects for a little while like loss of libido but I never had a problem getting an erection and that went away. I pee more often and I lost my chest and back hair. Which weren't that bad to begin with but I consider it a benefit to be honest.